Nissan Pathfinder. Manual — part 1037
SYSTEM
SEC-11
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
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J
L
M
A
B
SEC
N
O
P
Vehicle speed: 4 km/h (2.5 MPH) or more
Emergency stop operation
• Press and hold the push-button ignition switch for 2 seconds or more.
• Press the push-button ignition switch 3 times or more within 1.5 seconds.
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS
Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
LOCK
→ ACC
—
Not depressed
1
LOCK
→ ACC → ON
—
Not depressed
2
LOCK
→ ACC → ON → OFF
—
Not depressed
3
LOCK
→ START
ACC
→ START
ON
→ START
P or N position
Depressed
1
Engine is running
→ OFF
—
—
1
Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
Engine is running
→ ACC
—
—
Emergency stop operation
Engine stall return operation while
driving
N position
Not depressed
1
SEC-12
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Diagram
INFOID:0000000009175950
NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS : System Description
INFOID:0000000009175951
SYSTEM DESCRIPTION
• The NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS [NVIS (NATS)] prevents the engine from being
started by Intelligent Key whose ID is not registered to the vehicle (BCM). It has higher protection against
auto theft involving the duplication of mechanical keys.
• The ignition key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key battery is
discharged, the NVIS (NATS) ID verification is performed between the transponder integrated with Intelligent
Key and BCM via NATS antenna amp. when the Intelligent Key backside is contacted to push-button ignition
switch. If the verification results are OK, the engine start operation can be performed by the push-button igni-
tion switch operation.
• Locate the security indicator lamp and apply the anti-theft system equipment sticker that warns that the NVIS
(NATS) is on-board the model.
• Security indicator lamp always blinks when the power supply position is any position other than ON.
• Up to 4 Intelligent Keys can be registered (including the standard ignition key) upon request from the owner.
• Specified registration is required when replacing ECM, BCM or Intelligent Key.
• Possible symptom of NVIS (NATS) malfunction is “Engine cannot start”. The engine can not be started
because of other than NVIS (NATS) malfunction, so start the trouble diagnosis according to
• If ECM other than genuine part is installed, the engine cannot be started. For ECM replacement procedure,
refer to
EC-466, "Removal and Installation"
ALKIA2854GB
SYSTEM
SEC-13
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
C
D
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F
G
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SEC
N
O
P
PRECAUTIONS FOR KEY REGISTRATION
• The ID registration is a procedure that erases the current NVIS (NATS) ID once, and then reregisters a new
ID. Therefore before starting the registration operation, collect all registered Intelligent Keys from the cus-
tomer.
• When registering the Intelligent Key, perform only one procedure to simultaneously register both ID [NVIS
(NATS) ID and Intelligent Key ID].
SECURITY INDICATOR LAMP
• Warns that the vehicle is equipped with NVIS (NATS).
• Security indicator lamp always blinks when the power supply position is any position other than ON.
NOTE:
Because security indicator lamp is highly efficient, the battery is barely affected.
ENGINE START OPERATION WHEN INTELLIGENT KEY IS CONTACTED TO PUSH-BUTTON IG-
NITION SWITCH
1. When brake pedal is depressed while selector lever is in the P (Park) position, BCM activates NATS
antenna amp. that is located behind push-button ignition switch.
2. When Intelligent Key (transponder built-in) backside is contacted to push-button ignition switch, BCM
starts NVIS (NATS) ID verification between BCM and Intelligent Key (transponder built-in) via NATS
antenna amp.
3. When the NVIS (NATS) ID verification result is OK, buzzer in combination meter sounds and BCM trans-
mits the result to ECM.
4. BCM turns ACC relay ON and transmits ignition power supply ON signal to IPDM E/R.
5. IPDM E/R turns the ignition relay ON and starts the ignition power supply.
6. BCM detects that the selector lever position is P (Park) or N (Neutral).
7. BCM transmits starter request signal to IPDM E/R and turns the starter relay in IPDM E/R ON if BCM
judges that the engine start condition* is satisfied.
8. IPDM E/R turns the starter control relay ON when receiving the starter request signal.
9. Power supply is supplied through the starter relay and the starter control relay to operate the starter motor.
10. When BCM receives feedback signal from ECM indicating that the engine is started, BCM transmits a
stop signal to IPDM E/R and stops cranking by turning off the starter motor relay. (If engine start is unsuc-
cessful, cranking stops automatically within 5 seconds.)
*: For the engine start condition, refer to the table “POWER SUPPLY POSITION CHANGE TABLE BY PUSH-
BUTTON IGNITION SWITCH OPERATION” below.
POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The power supply position changing operation can be performed with the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside
is contacted to push-button ignition switch, it is equivalent to the operations below.
• When starting the engine, the BCM monitors under the engine start conditions:
- Brake pedal operating condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
LOCK
→ ACC
—
Not depressed
1
LOCK
→ ACC → ON
—
Not depressed
2
LOCK
→ ACC → ON → OFF
—
Not depressed
3
SEC-14
< SYSTEM DESCRIPTION >
[WITH INTELLIGENT KEY SYSTEM]
SYSTEM
Vehicle speed: 4 km/h (2.5 MPH) or more
Emergency stop operation
• Press and hold the push-button ignition switch for 2 seconds or more.
• Press the push-button ignition switch 3 times or more within 1.5 seconds.
VEHICLE SECURITY SYSTEM
VEHICLE SECURITY SYSTEM : System Diagram
INFOID:0000000009175952
VEHICLE SECURITY SYSTEM : System Description
INFOID:0000000009175953
• The vehicle security system has two alarm functions (theft warning alarm and panic alarm) and reduces the
possibility of a theft or mischief by activating horns and headlamps intermittently.
LOCK
→ START
ACC
→ START
ON
→ START
P (Park) or N (Neutral) po-
sition
Depressed
1
Engine is running
→ OFF
—
—
1
Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever
Brake pedal operation
condition
Engine is running
→ ACC
—
—
Emergency stop operation
Engine stall return operation while
driving
N (Neutral) position
Not depressed
1
JMKIA5735GB
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